No matter what metric is used, eventually all data sets (of size) need to be ordered or arranged so that the data itself can be used or viewed more efficiently. Similar to other views expressed, I would stay away from classic scales (1 - 10 ect...). Instead you could use meta data techniques and allow FTF members to tag fly patterns in the database based on their experience with them. The tags would be consice options (check boxes) presented next to the patterns in the database.
Each fly pattern in the database has 3 categories for which members can rate/classify:
Action Region Difficulty
Each category has several attributes (tags) that members can select (checkbox) based on their experience fishing or tying the pattern:
So if I just tied up some of DHise's Early Blacks and killed all day on one of our spring creeks, I could go back to the FPD, open the Early Black pattern and tag them like so:
x Top Producer
After data is collected in this way, folks can search for patterns within the one or all of the three categories. No feelings are hurt and the data is organized.
Just my $0.02
whatever happens, you guys still rock and we appreciate all the effort
(btw I saw the Hatches ad on FlyMax - looks good!)